Ex 3.4, 7 A number is divisible by 12. By what other numbers will that number be divisible? A number is divisible by 12
So, it will be divisible by all its factors
Factors of 12
1 × 12 = 12
2 × 6 = 12
3 × 4 = 12
4 × 3 = 12
We stop here as 4 & 3 have occurred earlier
So factors of 12 are 1, 2, 3, 4, 6 and 12
So , the number is also divisible by 1, 2, 3, 4, 6 & 12